1 // ATCdisplay.cxx - routines to display ATC output - graphically for now
3 // Written by David Luff, started October 2001.
5 // Copyright (C) 2001 David C Luff - david.luff@nottingham.ac.uk
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include <simgear/props/props.hxx>
33 #include <Include/general.hxx>
34 #include <Main/fg_props.hxx>
37 #include "ATCdisplay.hxx"
41 FGATCDisplay::FGATCDisplay() {
43 change_msg_flag = false;
50 FGATCDisplay::~FGATCDisplay() {
53 void FGATCDisplay::init() {
56 void FGATCDisplay::bind() {
59 void FGATCDisplay::unbind() {
62 // update - this actually draws the visuals and should be called from the main Flightgear rendering loop.
63 void FGATCDisplay::update(double dt) {
65 // These strings are used for temporary storage of the transmission string in order
66 // that the string we view only changes when the next repetition starts scrolling
67 // even though the master string (rep_msg_str) may change at any time.
68 static string msg1 = "";
69 static string msg2 = "";
71 if( rep_msg || msgList.size() ) {
72 //cout << "In FGATC::update()" << endl;
73 SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize");
74 SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize");
75 int iwidth = xsize_node->getIntValue();
76 int iheight = ysize_node->getIntValue();
78 glMatrixMode( GL_PROJECTION );
81 gluOrtho2D( 0, iwidth, 0, iheight );
82 glMatrixMode( GL_MODELVIEW );
86 glDisable( GL_DEPTH_TEST );
87 glDisable( GL_LIGHTING );
89 glColor3f( 0.9, 0.4, 0.2 );
91 float fps = general.get_frame_rate();
94 //cout << "dsp_offset1 = " << dsp_offset1 << " dsp_offset2 = " << dsp_offset2 << endl;
95 if(dsp_offset1 == 0) {
98 if(dsp_offset2 == 0) {
101 // Check for the situation where one offset is negative and the message is changed
102 if(change_msg_flag) {
103 if(dsp_offset1 < 0) {
105 } else if(dsp_offset2 < 0) {
108 change_msg_flag = false;
111 // guiFnt.drawString( rep_msg_str.c_str(),
112 // int(iwidth - guiFnt.getStringWidth(buf) - 10 - (int)dsp_offset),
114 guiFnt.drawString( msg1.c_str(),
115 int(iwidth - 10 - dsp_offset1),
117 guiFnt.drawString( msg2.c_str(),
118 int(iwidth - 10 - dsp_offset2),
121 // Try to scroll at a frame rate independent speed
122 // 40 pixels/second looks about right for now
123 if(dsp_offset1 >= dsp_offset2) {
124 dsp_offset1+=(40.0/fps);
125 dsp_offset2 = dsp_offset1 - (rep_msg_str.size() * 10) - 100;
126 if(dsp_offset1 > (iwidth + (rep_msg_str.size() * 10)))
129 dsp_offset2+=(40.0/fps);
130 dsp_offset1 = dsp_offset2 - (rep_msg_str.size() * 10) - 100;
131 if(dsp_offset2 > (iwidth + (rep_msg_str.size() * 10)))
138 //cout << "Attempting to render single message\n";
139 // We have at least one non-repeating message to process
140 if(fgGetBool("/ATC/display/scroll-single-messages")) { // Scroll single messages across the screen.
141 msgList_itr = msgList.begin();
143 while(msgList_itr != msgList.end()) {
144 atcMessage m = *msgList_itr;
145 //cout << "m.counter = " << m.counter << '\n';
146 if(m.dsp_offset > (iwidth + (m.msg.size() * 10))) {
147 //cout << "Stopping single message\n";
148 msgList_itr = msgList.erase(msgList_itr);
149 } else if(m.counter > m.start_count) {
150 //cout << "Drawing single message\n";
151 guiFnt.drawString( m.msg.c_str(),
152 int(iwidth - 10 - m.dsp_offset),
155 m.dsp_offset += (80.0/fps);
160 //cout << "Not yet started single message\n";
167 } else { // Display single messages for a short period of time.
168 msgList_itr = msgList.begin();
170 while(msgList_itr != msgList.end()) {
171 atcMessage m = *msgList_itr;
172 //cout << "m.counter = " << m.counter << '\n';
173 if(m.counter > m.stop_count) {
174 //cout << "Stopping single message\n";
175 msgList_itr = msgList.erase(msgList_itr);
176 } else if(m.counter > m.start_count) {
177 int pin = (((int)m.msg.size() * 8) >= iwidth ? 5 : (iwidth - (m.msg.size() * 8))/2);
178 //cout << m.msg << '\n';
179 //cout << "pin = " << pin << ", iwidth = " << iwidth << ", msg.size = " << m.msg.size() << '\n';
180 guiFnt.drawString( m.msg.c_str(), pin, (iheight - 40) );
194 glEnable( GL_DEPTH_TEST );
195 glEnable( GL_LIGHTING );
196 glMatrixMode( GL_PROJECTION );
198 glMatrixMode( GL_MODELVIEW );
203 void FGATCDisplay::RegisterSingleMessage(string msg, double delay) {
204 //cout << msg << '\n';
209 m.start_count = delay;
210 m.stop_count = m.start_count + 5.0; // Display for 5ish seconds for now - this might have to change eg. be related to length of message in future
211 //cout << "m.stop_count = " << m.stop_count << '\n';
215 msgList.push_back(m);
216 //cout << "Single message registered\n";
219 void FGATCDisplay::RegisterRepeatingMessage(string msg) {
225 void FGATCDisplay::ChangeRepeatingMessage(string newmsg) {
226 rep_msg_str = newmsg;
227 change_msg_flag = true;
231 void FGATCDisplay::CancelRepeatingMessage() {